Miley Cyrus Pot-Smoking Picture? "I Don't Have Instagram!"

Is Miley Cyrus getting acquainted with Mary Jane? The 20-year-old singer-actress found herself at the center of another social media controversy Tuesday (Feb. 20) when the Instagram account "mileyxxcyrus" revealed a black-and-white photo of a young blonde woman puffing on what appeared to be a marijuana joint or blunt. The image -- in which the female smoker's face is mostly concealed by smoke -- is caption "High as fvck."

But the "Party in the USA" songstress was quick to shoot down speculation about the controversial photo. "I don't have an Instagram," Cyrus tweeted late Tuesday, Feb. 19. Earlier in the evening, she wrote, "Why is everybody trippin. My timeline is blowing up. Everything's all good in my life just in a creative space right now."

Engaged to love Liam Hemsworth since last summer, the former Hannah Montana star has been putting the final touches on her next studio album. She told Cosmopolitan magazine that the LP will be an unpredictable mix of many, many influences.

"When I was growing up, my older brother would sneak me Nelly CDs, my dad had me listening to Dolly [Parton] and Johnny [Cash], and my mom is a complete metal head. So this record is a weird mixture of all that," she said.